In the gDNA study, 4,000 Google employees complete two anonymous,
optional in-depth surveys every year. Two years in, Google has
discovered that there are two main approaches to work-life
balance: "segmentors" and
"integrators."

"Segmentors" are people who can draw a line between work stress
and the rest of their lives, allowing them to not think about
work when they're at home. But only 31% of Googlers can successfully
draw boundaries between work and life.

Meanwhile, "integrators," which
make up for 69% of Google employees, are unable to do
that.

“For ‘Integrators,’ by contrast, work looms
constantly in the background,” Bock
writes. ”They not only find themselves checking email all
evening, but pressing refresh on gmail again and again to see if
new work has come in."

Unsurprisingly, half of these "Integrators" wish they could be
more like "Segmentors."

In order to address this, Google's Dublin office has a program
called "Google Goes Dark,"in which people have to leave their
devices at the front desk before leaving for the night.